-block of 4x4x4" wood
-heavy gauge wire
-LED and 330 ohm resistor
-old USB cable for power
-heat shrink tube
-drill and various sized bits
Step 1: Make a Light
Drill two holes next to each other in the top of the 4x4 block. Try and angle the drill in a little bit so that the holes meet in the center of the block. The swap out drill bits for a larger one, maybe 1/2 inch in diameter. Drill in from the bottom so that you can push wire through the holes and the top and it will pass through the bottom.
Now drill a hole in the back of the block, near the bottom. This hole should be about the size of the cable on the USB.
Cut off one end of your USB cable and strip the wires. Red is (+) and Black is (-). Solder these to the heavy gauge wires that are poking out the bottom of the block, and make sure to add your 330 ohm resistor inline on the (+) side.
Now solder an LED to the other end of the heavy gauge wires. Plug the USB into something and test to make sure the (+) and (-) are lined up. Add some heat shrink tubing to cover the solder joint.
Now you should be able to pull the heavy gauge wires out the top, while pulling the USB out the back and everything should tuck nicely into the bottom of the 4x4 block.